Improvement in brick-machines



ZSheetsS'heet2. J. DALZELL.

BRICK-MACHINE. 1% 79,1 4 v- Patented; June 27,1876

1141155555. I lqwqlua- N. PETERS. FHOTOwUTHOGRAPHER. WASHINGTON. D Q

JAMES DALZELL, OF PITTSBURG, PENNSYLVANlA.

IMPROVEMENT IN BRICK-MACHINES.

Specification forming part of Letters Patent No- 179,164., dated June27, 1876; application filed May 1, 1876.

T 0 all whom it may concern Be it known that 1, JAMES DALZELL, ofPittsburg, in the county of Allegheny and State of Pennsylvania, haveinvented a new and useful Improvement in Brick-Machines; and I do herebydeclare the following to be a full, clear, and exact descriptionthereof, reference being had to the accompanying drawing, forming partof this specification, in which Figure 1 is a side elevation of abrick-machine embodying my improvements. Fig. 2 is a sectional view onthe line 3 y, Fig. 1, the top part being broken off to show themoldways. Fig. 3 is a view of the under side of the bottom plate of thehopper, showing the cut-off, and the mechanism for operating thecut-ofl' and feeding in the molds.

Like letters refer to like parts wherever they occur.

Figs. 1 and 2 are introduced mainly to show the relation of the severalparts of a machine.

My invention relates to mechanism for actuating the cut-off, and forfeeding in the empty molds and delivering them when filled and itconsists in combining with the brick-machine a slide, or equivalentdevice, so constructed as to actuate the cut-off during a part only ofeach stroke, and the mold during one stroke only of its reciprocation.

I will now proceed to describe my invention, so that others skilled inthe art to which it appertains may apply the same.

A indicates the base of a brick-machine, and B a series of posts forsupporting the bottom plate (J of the hopper. c c are cross-bars, orlike devices, secured to posts B, for supporting the usual or anyapproved moldways, D, D. A suitable hopper with central shaft, inclinedarms for working the clay, and a sweep for forcing the clay into themolds, may be employed, but as such devices are no part of the presentinvention, may be of various kinds, and are not necessary to a thoroughcomprehension of my devices, they are omitted from the drawing. To thebottom plate G of the hopper I secure a series of guide pieces or ways,6 6 e in which move the cut-off f and a slide, g, for actuating thecutoff and molds. f represents'the cut-off, having a port, 2',corresponding to the port a, of hopper bottom 0, and a plate orextension, d, which closes the port a as the port i of the cut-offpasses from beneath the port of the hopper. This plate or extension atis made thinner than the portion of the cut-olf in which the port isformed, thus facilitating the action of the cut-01f, and providingclearance for the molds. Upon the edge of cut-offf, next slide g, is alug, m, which engages with lugs upon the slide (or the lugs may beformed by cutting away the rib n of the slide) the guide piece or way 0,between the cutoff and slide and which serves for both, being slotted topermit the lugs upon the cut-off and slide 9 to engage, as beforespecified. The lug m upon the cut-off is in length about equal to thelengthof the brickmold employed, while the recess in slide g, or thedistance between the projections on g which actuate the cut-off, isabout twice the length of a brick mold, so that the slide moves thelength of a mold both in going and coming before it commences to actuatethe cut-ofi', thus giving full time for the filling of a mold before thecut-off is actuated to sever the clay, by the forward stroke of theslide, and sufficient time to place empty. molds on the ways during theback stroke of slide g.

Secured to slide g, which moves the cut-off, is a yielding arm, h, bentat its extremity, as shown at 0, or provided with a lug, which moveswith the slide over the moldways in the path of the molds. This arm hmay b controlled by a spring, but is preferably a steel spring curved atitsend, or otherwise formed to hook back of and carry along the moldduring the forward motion of the slide, but adapted to yield and slideover any mold which may be in its path on the return stroke of theslide.

is, which may receive power from the same source as the shaft of thehopper.

The several parts being in the following position, i. 6., the port 6 ofthe cut-off directly under the port a of bottom plate (3, a mold inposition beneath the port, slide 9 drawn back, and one or more emptymolds on the moldways in the path of arm 11, the operation of thedevices will be as follows On the advance of slide g, the arm h willtake against a mold and carry it along the ways once its length, bywhich time the slide will have engaged The slide 9 is reciprocated bymeans of the crank-shaft and driving-wheel k with the cut-0E, which itthen actuates to close the port of the bottom plate 0 and to sever theclay. The continued motion of the slide which actuates the cut-off, atthe same time carries the empty mold into position in line with the porta, forcing the filled mold for ward out of the way. On its return strokethe slide moves for a short distance-say, about the length of amold-before it engages with the cut-off and retracts it to open the porta of the bottom plate, thus causing the arm h to clear the cut-offsufficientlv to take hold upon the empty molds upon the moldways,preparatory to feeding them up on the next forward stroke of the slide.

Though the description has been limited to one cut-off and feedmechanism, it will be ob served, on reference to the drawing, that twosets are shown. The construction and operation are the same no matterhow many times the devices are duplicated, and the only furtherdirections necessary to add here, are that when two or more sets areemployed with a single hopper, and sweep for filling the molds, thecut-ofl's should be geared to operate successively and immediately afterthe sweep has passed the corresponding port in the bottom plate 0.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is-

1. In a brick or similar machine, the combination of the cut-01f, thearm for feeding forward the mold, and the slide for actuating thecut-otf and arm, the slide being constructed substantially as described,so as to actuate the cut-01f during a part only of each stroke, and themold during one stroke only of its reciprocation.

2. In a brick or similar machine, the combi-

